可见光图像与红外图像融合是近年来热门的研究领域。根据日光的光谱分布、目标的反射系数以及黑体的红外辐射, 详细分析了人体、深色涂层、高温玻璃杯等常见目标的反射辐射光谱分布和红外辐射光谱分布。利用研制的可见光与红外融合图像采集系统, 采集了常见目标的可见光与红外融合图像, 得到了从可见光波段到红外波段融合图像的全光谱曲线。对可见光图像和红外图像进行了对比, 比较的结果表明, 融合图像具有包含反射辐射和红外辐射的双重特性, 使其光谱从单一的可见光波段或者红外波段拓展到从 0.39 μm到 15 μm的全波段。融合图像的信息量增加的根本原因是光谱信息的叠加。

The fusion of CCD and infrared image is one of the hot research fields recently. In this paper, according to the spectral distribution of sunlight、reflectance of objects and infrared radiation of black body, we analyze the reflection radiance distribution and infrared radiation distribution of human skin、dark paint and glass cup at high temperature . Using the image capture system developed ourselves of CCD and IR image, we capture the CCD and infrared fusion images, from which we get the curve of full spectrum distribution of the fusion image including CCD wave band and Infrared wave band. After comparing them, it is clear that the spectrum distribution of fusion image expands to wider wave band, which makes the image contains dual characters of reflection radiance and infrared radiation. The conclusion is that the essential reason of information quantity increasing of fusion image is the increase of spectrum information.